Patents by Inventor William J. Mackenzie

William J. Mackenzie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Retention barrier system
    Patent number: 6444286
    Abstract: A retention barrier system comprises a flexible laminate of a thin paper sheet and thin aluminum sheet in a rectangular configuration. The laminate has a leading edge and a parallel trailing edge and side edges between the leading and trailing edges. A plurality of flexible rods are positioned across, and coupled to, the laminate from side edge to side edge and spaced from each other along the length of the laminate.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: September 3, 2002
    Inventor: William J. MacKenzie
  • Assembly and method for attaching insulation material
    Patent number: 6324808
    Abstract: An assembly and method utilizing a clip and pin configuration for attaching insulation material in a building includes a clip (25) having a pair of grabbing members (45, 50) with an aperture (55) defined therebetween receiving a flange (20) of a frame member (15). A pin (80) is inserted into an opening (75) in one of the grabbing members (50), and is used to pierce the insulation material (110). A set of washers (100, 105) is connected to the pin (80) to retain the pin (80) in the opening (80) and to retain the insulation material (110) in the pin (80).
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: December 4, 2001
    Assignee: Fi-Foil Company, Inc.
    Inventors: William A. Lippy, William J. Mackenzie